Since 1 yard = 3 feet, we can use the conversion factor 1 meter = 3.3 feet. We can simplify this computation using one of our favorite shortcuts, multiplying by 11. Remember that multiplying by 1.1 is simply multiplying by 11, and dividing by 10.

We can convert meters into feet in two ways, both involving only mental calculations:

Multiply the meter measure by 3 then by 1.1.

7 meters = 7 x 3 x 1.1 = 21 x 1.1 = 23.1 feet

23 meters = 23 x 3 x 1.1 = 69 x 1.1 = 75.9 feet

30 meters = 30 x 3 x 1.1 = 90 x 1.1 = 99.0 feet

2. Multiply the meter measure by 1.1 then by 3

7 meters = 7 x 1.1 x 3 = 7.7 x 3 = 23.1 feet

23 meters = 23 x 1.1 x 3 = 25.3 x 3 = 75.9 feet

30 meters = 30 x 1.1 x 3 = 33 c 3 = 99 feet

Many will find the first method, easier to use.

For rough calculations, we can just multiply the meter measure by 10 and then divide by 3

7 meters = 70 ÷ 3 = 23 1/3 feet

23 meters = 230 ÷ 3 = 76 2/3 feet

30 meters = 300 ÷ 3 = 100 feet

As seen in last example, the result is only 1% different from the previous method.

In this last example we used the conversion rate of 1 foot = .30 m whereas the exact conversion is 1 foot = 0.3048 meters. This is 98.4% accurate which is good enough for estimates.

This is another example how we can creative apply the 25 Math Short Cuts (and combinations thereof) in our everyday computing problems

We can easily divide a number by 4 by halving the number twice and by 8, by halving thrice. We shall, however try dividing by 4 and 8 using the one line solution introduced in MSC 6 – Division by Two.

Example 12.1: 586 ÷ 4 =

When dividing a whole number by 4, there are only 4 possible remainders: 0, which means that the number is evenly divisible by 4; and 1, 2 and 3 which are equivalent to 0.25, 0.50 and 0.75 respectively. In this example, the dividend is an even number so the remainder can only be 0 or 2.

1 1 4 1 4 6 4) 5 18 6 4) 5 18 26 4) 5 18 26 ( r 2

a) Dividing 5 by 4 gives a quotient of 1 and a remainder of 1 which we place in front of the next digit of the dividend,

b) Dividing the next dividend 18 by 4 results in a quotient of 4 and a remainder of 2, which we then place in front of the next digit

c) Finally, we divide 26 by 4 to give 6 and a remainder of Thus the final quotient is 146 2/4 or 146.5.

Example 12.2: 743 ÷ 4 =

1 8 5 4) 7 34 23 (r 3

Here the dividend is an odd number, so we expect a remainder of 1 or 3.

So we arrive at an answer of 122 remainder 7. This is equivalent to 122 7/8 or 122.875

Example 12.4: 6352 ÷ 8 =

7 9 4 8) 63 75 32 (0

Using the one line method, we got the quotient 794. For the careful observer, the dividend, 6,352 is very near 6,400 or exactly 48 less. 6,400÷ 8 = 800 and 48÷ 8 = 6 so 6352 ÷ 8 is simply 800 – 6 = 794.

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MSC occupied the second floor of the Jesusa building along A. Flores St. for less than two years. In that short span of time, we experienced two of the most devastating natural calamities recorded in Philippine history – the eruption of Mt. Pinatubo and the Luzon earthquake.

So it is customary to multiply the Celsius value by 9 and divide it by 5 before adding 32 to the result. A little manipulation of the formula will make it suitable to mental calculation. The decimal equivalent of 9/5 is 1.8 which is simply 2 – 0.2.

The second batch of students who enrolled at MSC Computer Training Center was initially composed of 85 students, 46 Computer Technology course and 39 Office Management course students.

They spent their MSC days at the Alvero building along M. Paulino St. (in front of Ultimart). This batch was one of the liveliest batches of MSC. Various organizations were formed despite the small number of students compared to big schools, and these orgs actively participated in school activities and even sponsored some events.

When the Internet first became popular in the mid 90’s, the common way of accessing the Internet was through a dial-up connection. The PC was connected to the MODEM, then to the telephone line. The user needed to dial an ISP or Internet Service Provider number and the ISP connected him to the Internet. Connection was slow by today’s standard ( 9.6kbps was super fast then, and it took at least 14 minutes to download a 1MB file). What was worse was that one’s telephone was busy the whole time they were connected to the net and they pay the ISP and the telephone company separately ( sometimes with long distance charges )

The FREE Financial Planning Seminar goes to San Pablo! The seminar is open to the public and will be held at the MSC Green Campus in San Gabriel, hence it is especially convenient for MSC teachers, staff, alumni and friends.

What: This two part event will have a “Practical Tips on Money Management” seminar/presentation then the attendees break up into smaller groups for financial coaching to create personal financial blueprints.

When: Oct 8 2014, 4pm

Where: MSC Institute of Technology Green Campus

The Financial Planning seminar is about building a solid financial foundation.

Every week, for 25 weeks up to December 4, 2014 when we celebrate our 25th Foundation day, this newsletter will feature one math short cut. We will progress from the simplest to the simple. Believe you can do it! Just proceed one step ( short cut ) at a time, and be pleasantly surprised to discover none of the math short cuts are difficult! Forward this newsletter to your friends, relatives, and young kids.

A Kilogram is 2.204622622 pounds. But for practical purposes we can consider 1 kilo = 2.2 pound conversion. So we can convert kilos to pounds by multiplying by 2 then by 1.1or by 11 then by 0.2 depending on which is easier.

Convert kilo to pounds and pounds to kilo

42 kilos is (42 x 2) x 1.1 = 84 x 1.1 = 92.4 lbs.

57 kilos is (57 x 2) x 1.1 = 114 x 1.1 = 125.4 lbs

Or (57 x 11) x .2 = 627 x .2 = 125.4 lbs

303 kilos is (303 x 11) x.2 = 3333 x .2 = 666.6 lbs.

A Pound is about 0.45359 kgs. We can use 1 pound = 0.45 kilograms which is about 99.2% accurate for ordinary computations. To multiply by 0.45 we can multiply by 0.9 then divide by 2 or vice versa.